
1 Contents
IntroductionProduct information  .......................... 7
Operator’s manual  ............................. 8
Where to find it  ................................ 13
Reporting Safety Defects  ................ 15Instruments and controlsInstruments and controls  ............... 18
Door control panel  ....................... 20
Overhead control panel  ............... 21
Dashboard ..................................... 22
Center console  .............................. 24OperationVehicle keys  ...................................... 28
Start lock-out  .................................... 31
General notes on the 
central locking system  ............... 32
Central locking system  ................... 33
Radio frequency and 
infrared remote control  ............... 33
KEYLESS-GO ................................. 36Opening and closing windows 
and sliding / pop-up roof 
from outside  ................................. 43
Panic button  ................................. 45
Mechanical keys  .......................... 45
Doors ................................................. 46
Power closing assist for 
doors and trunk lid  .................... 48
Central locking switch .................... 48
Automatic central locking .............. 50
Emergency unlocking in 
case of accident  .......................... 50
Trunk ..................................................51
Trunk lamp ....................................... 54
Trunk lid release switch  ................ 55
Trunk lid release/close switch  ...... 56
Trunk lid emergency release  ........ 59
Antitheft alarm system ................... 60
Tow-away alarm  ................................ 61
Easy-entry/exit feature  .................. 63
Front seat adjustment ..................... 64
Removal and installation of 
front seat head restraints .......... 68
Lumbar support  ............................... 69Multicontour backrest ..................... 69
Seat heater  ........................................ 71
Seat ventilation system  ................... 74
Rear seat head restraints ................ 76
Power head restraints, rear  ............ 77
Power seats, rear .............................. 78
Power seats, setting passenger 
seat position from rear ............... 80
Seat belts and integrated 
restraint system  .......................... 81
Seat belts ........................................... 81
Seat belt nonusage 
warning system  ........................... 82
BabySmart
TM airbag 
deactivation system  .................... 88
Self-test BabySmart
TM without 
special child seat installed  ......... 88
Supplemental Restraint 
System (SRS)  ............................... 89
Emergency tensioning 
retractor (ETR) ............................. 90
Airbags .............................................. 91 

26 Contents – Operation
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
OperationVehicle keys  ...................................... 28
Start lock-out  .................................... 31
General notes on the 
central locking system  ............... 32
Central locking system  ................... 33
Radio frequency and 
infrared remote control  ............... 33
KEYLESS-GO ................................. 36
Opening and closing windows 
and sliding / pop-up roof 
from outside  .................................. 43
Panic button  .................................. 45
Mechanical keys  ........................... 45
Doors .................................................. 46
Power closing assist for 
doors and trunk lid  ..................... 48
Central locking switch  .................... 48
Automatic central locking  .............. 50
Emergency unlocking in 
case of accident  ........................... 50
Trunk ................................................. 51
Trunk lamp  ....................................... 54Trunk lid release switch  ................ 55
Trunk lid release/close switch  ...... 56
Trunk lid emergency release  ........ 59
Antitheft alarm system ................... 60
Tow-away alarm  ................................ 61
Easy-entry/exit feature  .................. 63
Front seat adjustment ..................... 64
Removal and installation of 
front seat head restraints .......... 68
Lumbar support  ............................... 69
Multicontour backrest  .................... 69
Seat heater ......................................... 71
Seat ventilation system  ................... 74
Rear seat head restraints  ................ 76
Power head restraints, rear  ........... 77
Power seats, rear  ............................. 78
Power seats, setting passenger 
seat position from rear  .............. 80
Seat belts and integrated 
restraint system  ...........................81
Seat belts  ...........................................81
Seat belt nonusage 
warning system  .......................... 82BabySmart
TM airbag 
deactivation system  .................... 88
Self-test BabySmart
TM without 
special child seat installed  ......... 88
Supplemental Restraint 
System (SRS)  ............................... 89
Emergency tensioning 
retractor (ETR) ............................. 90
Airbags .............................................. 91
Safety guidelines for the 
seat belt, emergency 
tensioning retractor 
and airbag  .................................... 97
Infant and child 
restraint systems ......................... 99
Steering wheel adjustment  .......... 102
Rear view mirrors  .......................... 103
Memory function  ........................... 108
Key dependent 
memory settings  ........................ 111
Instrument cluster  ..........................112
Multifunction steering wheel, 
multifunction display  ................118 

65 Seats
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index The switches are located in each front door.
We recommend to adjust the power seat in the following 
order:
1Seat adjustment, fore / aft
Press the switch (fore / aft direction) until a 
comfortable seating position is reached that still 
allows you to reach the accelerator / brake pedal 
safely. The position should be as far rearward as 
possible, consistent with ability to properly operate 
controls.Note:
Do not move the front passenger seat completely 
forward if objects are stored in the parcel net in the 
front passenger-side footwell. Items in the net may 
be damaged. 
2Seat, up / down
Press the switch (up / down direction) until 
comfortable seating position with still sufficient 
headroom is reached.
3Seat cushion tilt
Press the switch in the direction of the arrow until 
your legs are lightly supported. 
4Backrest tilt
Press the switch in the direction of the arrow until 
your arms are slightly angled when holding the 
steering wheel.
5Seat cushion depth
Press the switch fore or aft until your legs are 
supported comfortably. 

67 Seats
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Important!
Prior to operating the vehicle, the driver should adjust 
the seat height for proper vision as well as fore/aft 
placement and backrest angle to insure adequate 
control, reach, operation, and comfort. The head 
restraint should also be adjusted for proper height. See 
also airbag section on page 91 for proper seat 
positioning.
In addition, also adjust the steering wheel to ensure 
adequate control, reach, operation, and comfort.
Both the inside and outside rear view mirrors should be 
adjusted for adequate rearward vision.
Fasten seat belts. Infants and small children should be 
seated in a properly secured restraint system that 
complies with U.S. Federal Motor Vehicle Safety 
Standard 213 and Canadian Motor Vehicle Safety 
Standard 213.
All seat, head restraint, steering wheel, and rear view 
mirror adjustments as well as fastening of seat belts 
should be done before the vehicle is put into motion.
Wa r n i n g !
Children 12 years old and under must never ride in 
the front seat, except in a Mercedes-Benz 
authorized BabySmart
TM compatible child seat, 
which operates with the BabySmart
TM system 
installed in the vehicle to deactivate the passenger-
side front airbag when it is properly installed. 
Otherwise they will be struck by the airbag when it 
inflates in a crash. If this happens, serious or fatal 
injury will result.
According to accident statistics, children are safer 
when properly restrained in the rear seating 
positions than in the front seating positions. 
Infants and small children must ride in back seats 
and be seated in an appropriate infant or child 
restraint system, which is properly secured with 
the vehicle’s seat belt, fully in accordance with the 
child seat manufacturer’s instructions.A child’s risk of serious or fatal injuries is 
significantly increased if the child restraints are 
not properly secured in the vehicle and the child is 
not properly secured in the child restraint. 

68 Seats
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Removal and installation of front seat head 
restraints
Caution!
Do not remove head restraints except when mounting 
seat covers. Whenever restraints have been removed be 
sure to reinstall them before driving.Note:
Tilt the backrest rearward for easier removal and 
installation of the head restraints.
To  r e m ove :
Press switch (1) upwards and hold until the head 
restraint is fully extended. Pull head restraint out.
To  i n st a l l :
Press switch (1) upwards and hold for about 5 seconds. 
Press the head restraint down until it engages.
Adjust head restraint to the desired position.
Wa r n i n g !
For your protection, drive only with properly 
positioned head restraints.Adjust head restraint to support the back of the 
head approximately at ear level.Do not drive the vehicle without the seat head 
restraints. Head restraints are intended to help 
reduce injuries during an accident. 

69 Seats
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Lumbar support (optional)
The thumbwheels are located on the sides of the front 
seats and rear seats.
The seats have an inflatable air cushion built into the 
backrest to provide additional lumbar support.
Turn the electronic key in starter switch to position 2. 
The inflation pressure of the air cushion can be 
continuously varied between position “0” (no pressure) 
and position “5” (maximum pressure) by changing the 
pressure regulator (1) setting.Multicontour backrest 
(optional, standard on model S 600)
Front seats:
The switch clusters are located on the side and near the 
front of the front seats. Settings, see page 70.
1Lumbar region
2Center section
3Backrest side cushions
4Massage function (PULSE)
P91.25-0335-26
1 

70 Seats
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Rear seats:
The switch clusters are located on the sides of the seat.
Some models may be equipped with multicontour seats. 
These seats have inflatable air cushions built into the 
backrests to provide additional lumbar and side support.
Turn the electronic key in starter switch to position 2 to 
operate.We recommend that you make the basic settings in the 
following order:
1Lumbar region
2Center section
(front seats only)
Switches 1 and 2:
Press top of switch and hold; the individual air 
cushions will be inflated one after the other. Release 
the switch in the desired position.
Press bottom of switch and hold; the individual air 
cushions will be deflated one after the other. 
Release the switch in the desired position.
3Backrest side cushions
The lateral support increases or decreases as you 
press the button to the right or left. Adjust the side 
cushions to provide good lateral support. 

71 Seats
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index 4Massage function(PULSE)
The multicontour backrest is equipped with a 
massage function to help prevent fatigue during 
longer journeys.
The PULSE function inflates and deflates the air 
cushions in the backrest rhythmically.
An indicator lamp on the switch lights up when the 
PULSE function is switched on. The PULSE function 
switches off automatically after approximately 
5minutes.
Note:
If the top cushion is inflated, only the middle air 
cushion is inflated and deflated.Seat heater
The seat heaters can be switched on with the electronic 
key in starter switch positions 1 or 2. 
The buttons are located on each door.
Note:
When in operation, the seat heater consumes a large 
amount of electrical power. It is not advisable to use the 
seat heater longer than necessary.
The seat heaters may automatically switch off if too 
many power consumers are switched on at the same 
time or if the battery charge is low. In this case, one or 
both indicator lamps will blink. 
The seat heaters switch back on again automatically as 
soon as sufficient voltage is available.
If the blinking of the indicator lamps is distracting to 
you, the seat heaters can be switched off.